X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2FSLOF%2Flib%2Flibc%2Fgetopt%2Fgetopt.c;fp=qemu%2Froms%2FSLOF%2Flib%2Flibc%2Fgetopt%2Fgetopt.c;h=be626ddc290ee84b360563f1210865d165f2bbdb;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/SLOF/lib/libc/getopt/getopt.c b/qemu/roms/SLOF/lib/libc/getopt/getopt.c
new file mode 100644
index 000000000..be626ddc2
--- /dev/null
+++ b/qemu/roms/SLOF/lib/libc/getopt/getopt.c
@@ -0,0 +1,470 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+/*
+ * includes
+ *******************************************************************************
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+/*
+ * global variables, types & constants
+ * may be removed if already defined
+ *******************************************************************************
+ */
+int opterr = 1;
+int optopt = 0;
+int optind = 1;
+char *optarg = NULL;
+
+/*
+ * internal values needed by getopt
+ * DO NOT CHANGE or REMOVE
+ */
+enum {
+	OPTIONAL_ARG = 0,
+	MANDATORY_ARG = 1,
+	NO_ARG = 2
+};
+
+/*
+ * variables needed by getopt & getopt_long!
+ * DO NOT REMOVE
+ */
+static char *optstart = NULL;
+
+int
+getopt(int argc, char **argv, const char *options)
+{
+	char *optptr;
+	char *argptr;
+	int optman;
+	int idx;
+	int ret = 0;
+	int argpresent;
+
+	/*
+	 * reset used global values
+	 */
+	optopt = 0;
+	optarg = NULL;
+
+	/*
+	 * reset getopt if a new argv pointer is passed
+	 */
+	if (optstart != argv[0]) {
+		optopt = 0;
+		optind = 1;
+		optarg = NULL;
+		optstart = argv[0];
+	}
+
+	/*
+	 * return if no more arguments are available
+	 */
+	if (optind >= argc) {
+		return -1;
+	}
+
+	/*
+	 * start parsing argv[optind]
+	 */
+	idx = 0;
+
+	/*
+	 * return if the option does not begin with a '-' or has more than 2 characters
+	 */
+	if (argv[optind][idx] != '-') {
+
+		if (opterr != 0) {
+			printf("unknown option \'%s\', expecting \'-\'\n",
+			       argv[optind]);
+		}
+
+		optopt = (int) argv[optind][idx];
+		optind++;
+
+		return '?';
+	}
+
+	/*
+	 * continue to the next character in argv[optind]
+	 */
+	idx++;
+
+	/*
+	 * identify the option
+	 * make sure if an option contains a ':' to invalidate the option
+	 */
+	optptr = strchr(argv[optind], ':');
+
+	if (optptr == NULL) {
+		optptr = strchr(options, (int) argv[optind][idx]);
+	} else {
+		optptr = NULL;
+	}
+
+	/*
+	 * check whether the option is present
+	 */
+	if (optptr == NULL) {
+		/*
+		 * unknown option detected
+		 */
+		if (opterr != 0) {
+			printf("unknown option \'%s\'\n", argv[optind]);
+		}
+
+		optopt = (int) argv[optind][idx];
+		optind++;
+
+		return '?';
+	}
+
+	/*
+	 * the option is present in the option string
+	 * setup return value
+	 */
+	ret = (int) *optptr;
+
+	/*
+	 * get option argument if needed
+	 */
+	optptr++;
+
+	/*
+	 * determine between mandatory and optional argument
+	 */
+	optman = NO_ARG;
+
+	if (*optptr == ':') {
+		optman--;	// now set to MANDATORY_ARG
+	}
+
+	if (optman == MANDATORY_ARG) {
+		optptr++;
+
+		if (*optptr == ':') {
+			optman--;	// now set to OPTIONAL_ARG
+		}
+
+	}
+
+	/*
+	 * if strlen( argv[optind ) is greater than 2,
+	 * the argument is in the same argv
+	 */
+	if (strlen(argv[optind]) > 2) {
+		argptr = &argv[optind][2];
+
+		/*
+		 * do not allow '-' in an argument
+		 */
+		if (strchr(argptr, '-') != NULL) {
+
+			if (opterr != 0) {
+				printf
+				    ("illegal argument value \'%s\' for option \'-%c\'\n",
+				     argptr, ret);
+			}
+
+			optopt = ret;
+
+			return '?';
+		}
+
+	} else {
+		/*
+		 * move on to the next argv
+		 * it now either contains an argument or the next option
+		 */
+		optind++;
+
+		/*
+		 * make sure not to overflow
+		 */
+		if (optind < argc) {
+			argptr = argv[optind];
+		} else {
+			argptr = NULL;
+		}
+
+	}
+
+	/*
+	 * do the needed actions for the argument state
+	 */
+	switch (optman) {
+	case OPTIONAL_ARG:
+
+		if (argptr == NULL) {
+			break;
+		}
+
+		if (*argptr != '-') {
+			/*
+			 * argument present
+			 */
+			optarg = argptr;
+			optind++;
+
+		}
+
+
+		break;
+
+	case MANDATORY_ARG:
+		argpresent = (argptr != NULL);
+
+		if (argpresent) {
+			argpresent = (*argptr != '-');
+		}
+
+		if (argpresent) {
+			/*
+			 * argument present
+			 */
+			optarg = argptr;
+			optind++;
+		} else {
+			/*
+			 * mandatory argument missing
+			 */
+			if (opterr != 0) {
+				printf
+				    ("missing argument for option \'-%c\'\n",
+				     ret);
+			}
+
+			optopt = ret;
+
+			/*
+			 * if the first character of options is a ':'
+			 * return a ':' instead of a '?' in case of
+			 * a missing argument
+			 */
+			if (*options == ':') {
+				ret = ':';
+			} else {
+				ret = '?';
+			}
+
+		}
+
+
+		break;
+
+	case NO_ARG:
+
+		if (strlen(argv[optind - 1]) > 2) {
+
+			if (opterr != 0) {
+				printf
+				    ("too many arguments for option \'-%c\'\n",
+				     ret);
+			}
+
+			optopt = ret;
+			ret = '?';
+		}
+
+
+		break;
+
+	}
+
+	return ret;
+}
+
+int
+getopt_long(int argc, char **argv, const char *shortopts,
+	    const struct option *longopts, int *indexptr)
+{
+	struct option *optptr = (struct option *) longopts;
+	int optidx = 0;
+	int idx;
+	int ret = 0;
+	int argpresent;
+
+	/*
+	 * reset used global values
+	 */
+	optopt = 0;
+	optarg = NULL;
+
+	/*
+	 * reset indexptr
+	 */
+	*indexptr = -1;
+
+	/*
+	 * reset getopt if a new argv pointer is passed
+	 */
+	if (optstart != argv[0]) {
+		optopt = 0;
+		optind = 1;
+		optarg = NULL;
+		optstart = argv[0];
+	}
+
+	/*
+	 * return if no more arguments are available
+	 */
+	if (optind >= argc) {
+		return -1;
+	}
+
+	/*
+	 * start parsing argv[optind]
+	 */
+	idx = 0;
+
+	/*
+	 * return if the option does not begin with a '-'
+	 */
+	if (argv[optind][idx] != '-') {
+		printf("unknown option \'%s\', expecting \'-\'\n",
+		       argv[optind]);
+
+		optind++;
+
+		return '?';
+	}
+
+	/*
+	 * move on to the next character in argv[optind]
+	 */
+	idx++;
+
+	/*
+	 * return getopt() in case of a short option
+	 */
+	if (argv[optind][idx] != '-') {
+		return getopt(argc, argv, shortopts);
+	}
+
+	/*
+	 * handle a long option
+	 */
+	idx++;
+
+	while (optptr->name != NULL) {
+
+		if (strcmp(&argv[optind][idx], optptr->name) == 0) {
+			break;
+		}
+
+		optptr++;
+		optidx++;
+	}
+
+	/*
+	 * no matching option found
+	 */
+	if (optptr->name == NULL) {
+		printf("unknown option \'%s\'\n", argv[optind]);
+
+		optind++;
+
+		return '?';
+	}
+
+	/*
+	 * option was found, set up index pointer
+	 */
+	*indexptr = optidx;
+
+	/*
+	 * get argument
+	 */
+	optind++;
+
+	switch (optptr->has_arg) {
+	case no_argument:
+		/*
+		 * nothing to do
+		 */
+
+		break;
+
+	case required_argument:
+		argpresent = (optind != argc);
+
+		if (argpresent) {
+			argpresent = (argv[optind][0] != '-');
+		}
+
+		if (argpresent) {
+			/*
+			 * argument present
+			 */
+			optarg = argv[optind];
+			optind++;
+		} else {
+			/*
+			 * mandatory argument missing
+			 */
+			printf("missing argument for option \'%s\'\n",
+			       argv[optind - 1]);
+
+			ret = '?';
+		}
+
+
+		break;
+
+	case optional_argument:
+
+		if (optind == argc) {
+			break;
+		}
+
+		if (argv[optind][0] != '-') {
+			/*
+			 * argument present
+			 */
+			optarg = argv[optind];
+			optind++;
+		}
+
+
+		break;
+
+	default:
+		printf("unknown argument option for option \'%s\'\n",
+		       argv[optind - 1]);
+
+		ret = '?';
+
+		break;
+
+	}
+
+	/*
+	 * setup return values
+	 */
+	if (ret != '?') {
+
+		if (optptr->flag == NULL) {
+			ret = optptr->val;
+		} else {
+			*optptr->flag = optptr->val;
+			ret = 0;
+		}
+
+	}
+
+	return ret;
+}